Sinn U2 EZM 5 User manual
MODEL SERIES
6 – 9
10 – 11
12 – 15
16 – 19
20 – 21
22 – 23
24 – 27
28 – 29
30 – 31
CONTENTS
SINN SPEZIALUHREN ZU FRANKFURT AM MAIN
PERFECT DIVING WATCHES
DNV GL CERTIFIES SINN DIVING WATCHES
(EZM 5) – THE MISSION TIMER FOR DIVERS
MADE OF GERMAN SUBMARINE STEEL
Ar-DEHUMIDIFYING TECHNOLOGY
INSTRUCTIONS FOR USE
ADJUSTING THE LENGTH OF THE WATCH STRAPS
TECHNICAL DETAILS
SERVICE
4
DEAR CUSTOMER,
Since the company was founded
in 1961, we have focused on the
creation of high-quality mechanical
watches. Nowadays, watch lovers
associate innovation and patents
with the name of Sinn Spezialuhren.
And it’s not just our diving watches
that stand for high performance,
robustness, and durability, quality
and precision.
These watches do, however,
constitute an outstanding example of
how we repeatedly push the limits of
what can be achieved physically in
development.
We are driven by the question
of which new technologies and
materials can be used to make
diving watches safer and more
suitable for everyday use.
5
It is often worth indulging in a little lateral thinking to see what is going on in
other industrial sectors or fields of science. It is therefore no coincidence that
the U1, U2, U200, U212, U1000 and UX are made from high-strength, seawater-
resistant German submarine steel. The T1 and T2 models are another
example. All case parts for these mission timers are made from high-strength
titanium. Both submarine steel and high-strength titanium predestine our
diving watches for use in salt water.
Fittingly, we work closely with an independent company specialising in
technical maritime security. The world’s largest classification society DNV GL
(formerly Germanischer Lloyd, Hamburg) checks and certifies the diving-
watch data – including compliance with European diving device standards,
which is unique in the watch industry.
I am delighted that you have decided to buy a SINN diving watch and hope
that it will continue to give you pleasure for many years to come.
Yours sincerely,
Lothar Schmidt
6
It was back in 1961 that pilot and blind-flying instructor Helmut Sinn founded
the company. Since then, we have been committed to producing high-
specification mechanical watches. In 1994, the graduate engineer Lothar
Schmidt took over the company. This marked the beginning of a new era
for the SINN brand, because the new owner took a decisive step towards
more innovation. Under his leadership, new technologies and materials were
introduced, thus providing the crucial incentives for our company’s evolution
and gradual emergence as an insider’s tip for lovers of fine watches. Today,
our name stands for technical innovations – much to the delight of both the
trade and our customers alike.
SINN SPEZIALUHREN ZU FRANKFURT AM MAIN
7
Advancements in endurance testing
Take, for example, the absolutely condensation-
free, anti-reflective, german submarine steel diving
watch – made possible by HYDRO Technology.
Other examples include a chronometer
chronograph fashioned from a 22-carat gold alloy
that is as hard as stainless steel and a chronometer
with a magnetic resistance of up to 80,000 A/m.
There are also watches with a clockwork
mechanism optimally protected from aging
by an inert gas and integrated dehumidifying
capsule. The list would not be complete without
mentioning the development of mission timers
(Einsatzzeitmesser or EZM in German) for firefighters,
for special police units and border patrol guards
as well as Temperature Resistance Technology
to keep mechanical watches performing at
temperatures ranging from − 45 °C to + 80 °C. This
technology has proven its worth in the EZM 10
TESTAF model, for example, used as part of the
official approvals procedure for Airbus Helicopter’s
(formerly Eurocopter) EC 145 T2 high-performance
helicopter. Hot and cold climate tests and
high-altitude experiments were carried out in the
deserts of the USA, the Rocky Mountains and the
frozen wastes of Canada. The watch was worn
unprotected, outside the pilot’s overall, during cold
climate tests at temperatures reaching − 45 °C.
8
Innovations and certifications
The world’s largest classification society for maritime safety DNV GL (formerly
Germanischer Lloyd, Hamburg), has been testing our diving watches
for pressure and water resistance since 2005. As part of DNV GL’s official
certification process, our diving watches have been treated as part of diving
equipment since 2006 and tested and certified in accordance with European
diving equipment standards. This is unparalleled in the watch industry.
We have had selected pilot’s watches tested and certified to the technical
standard for pilot’s watches (TESTAF) by Aachen University of Applied
Sciences since 2012. The TESTAF, the result of a research project at the initiative
of Sinn Spezialuhren, ensures that a pilot’s watch meets all timekeeping
requirements during flight operations in accordance with visual and/or
instrumental flight regulations and is suitable for professional use.
DIAPAL is one of our most important technological developments, with oiling
no longer needed for the most important functions in the watch thanks to
the materials we select. This technology was first used in 2001. With the aid
of TEGIMENT Technology, we achieve greatly increased scratch resistance
through surface hardening.
9
Ongoing advancement in technology and quality
Our top priority has always been to develop watches that offer superior
performance – both in daily and in professional use. Which is why our
engineers are working continually to identify which innovative methods,
materials and technologies are best suited for optimising our watches.
Each new development has to first undergo rigorous practical tests before
being incorporated. And no watch leaves our workshops before it has
been subjected to thorough checking and fine adjustment by our master
watchmakers.
Workshop modifications and hand-engraving
From the robust case and the polished crystal
through to elaborate refinements: we make sure
that each and every detail of our watches is fit
for purpose. The same applies to our workshop
modifications. Only the perfect interaction of all
components and technologies ensures that our
watches can meet all their design specifications
in full. Take for example the SZ02 calibre of our
U1000 diving chronograph. The 60-minute scale
of the stopwatch minute counter is much simpler
and more intuitive to read than the 30-minute
scale commonly found on other watches. The
hand-engraving represents a highly personal form
of refinement. If required, our specially trained
engraver can etch a name, initials, monograms
or symbols onto the rotor, movement bridge and
case back.
10
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1
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